NEED HELP with LOGS - The Richter scale is used to measure the magnitude of an earthquake. The magnitude, R, is given by the equation R=0.65log(0.39E)+1.45, where E is the energy (measured in kilowatt-hours) released by the earthquake.

my equation 7.5, so 7.5 = 0.65log(0.39E) + 1.45
how do i turn this to form b=log_a

Question

NEED HELP with LOGS - The Richter scale is used to measure the magnitude of an earthquake. The magnitude, R, is given by the equation R=0.65log(0.39E)+1.45, where E is the energy (measured in kilowatt-hours) released by the earthquake. 

my equation 7.5, so 7.5 = 0.65log(0.39E) + 1.45
how do i turn this to form b=log_a

chrisdbest · Answer

the base is the .65, and the log remains the same

anonymous · Answer

soo would it be log_ .65?? @chrisdbest

anonymous · Answer

what about the rest of the variables

chrisdbest · Answer

it would all be equal to .65

anonymous · Answer

soooo log_ .65 = .65 ??@chrisdbest

chrisdbest · Answer

no, so log(7.5)=.65

anonymous · Answer

ohhh and what about the rest of the variables like (.39E) and 1.45 @chrisdbest

chrisdbest · Answer

hmm